Improvement in perpetual brick-burning kilns



" ltidirh'- i w I LIL 1 A M e In B E R" DET no i 'rg Mien i N .y

'Leners Page Ng. loasijdmq December c, 187e..

@enjoyment in PEuPei-UALnmionunnmgxnns.

` ".llh'e Sciiednlhe referred' to in these Letters Patent and making pari:v oi the slme.

Torjwhonrit may concern.: f u le it'lmown. that I, WILLIAM GILBnnnohDetroit, in the county of Wayne and State of Michigan, have invented anew and useful Improvement in lerpetual Brick-Burning Kilns; yand' I do declare the following 'is a true' and accurate description thereof, A

to the letters ot' reference'marked thereon and being a of one side ofthe cant-he sand-joint, and the sprintline-pipe 5 and ligure 7 is a broken side 'elevation of the earand the sprinkling-pipe.

Like letters indicate like parts in each figure.

The nature of this invention relates to an improved construction of a brick-ktln, which will allow the workot' loading. perpetuallythe bricks 4at oneend of the kiln and. unloading at the other without being obliged to stop the fires, and is more especiallydesigncd to be an improvement upon my kiln for which Letters Patent ofthe United States, No.f82,5ll, were issued to me on the 29th day of September, 1868. 'The invention consists in a novel construction of the trixckfplatform and an arrangement oy meansof which v very little, if any, heatis allowedzto pass fromthe ruins tothe open space below, ory the'cold air from celo-w the platform from entering the kiln, while, should any ol'isaid cold air become slightly heated; and rarilied, it will passthrongh fines to create-a draught to the nre.

lt also consists in a pipe f or throwing a spray oi water against thel sides ofl the trucks, near the top thereof, to prevent heating, 'and in 'interposingbel tween the' platform .ofthe trucks and the bricks Vpiled np'thereon,-a layer ,of ashes, sand", orother suitable material, which will prevent the -platformfrom .being heated, andin-a new and ngenionsarrangement ot' the 'various parts top'roduce 'the dcsiredresults, asl more fully hereinafter described.

A represents a series of bell-shaped furnaces,i with an upward .andinward inclination, built in opposite sides ci' a chamber of any'dcslrcd length, and provided with an arched roof, B.

Fach of the-se. furnacesor tire-places is provided with a door, a, through which ,thel'uel is introduced.

liluis, C, opening from the opposite side of the kiln,

iipouthc same plane with the bottom of the interior oudof the fire-places or furnaces, aiord an exit for the products of combustion..

T he'seues are three or more inv number, as may.'

n 'l s n l*be desired, and eachflnc' is provided with a damper, lr.. I

kiln, upon opposite sides thereof', whieh admits-cold'air into the chamber E, whence, as oecasioiireqnires, it, i. is carried, bynmeuns of the fines @,jjt'ofthe"furnaccsA, as 'shown in fig. 3, to supply air-tothe flame. f

F isau ironv` raili'ray-trdclr running upon thetraclcif' (Jr, which extends the whole length of theigilu-and coolingchamber 1I, which is an extension ofthe kilng, without furnaces.I -flhe platform of this truck ispro- .1

vvided upon its two sides with V-shapedrlanges, projecting above and below the plane ci' theplatibrm.

.lh'e flange I, which projects bclowtheplatform, is

inserted inguttcrs, J, which -utehuilt iu nach of the sidefwallsoiltlic kiln, aud th c whole length thereof,

travel with the movement of thc car, thus ferming'a complete joint, by means of which -thechambcrs above and below the platform of thec'ars are kept entirely separate, and all communication between them is cut The lauge K, which projects ahoy-ie the platform L of the truekandis designed to hold inplaceon said truck alayer of sand, ashes, orother suitable material,'upon'\`vhich the bricksto be burned are placed. y

Thislayer of :ashes isdesigned to prevent the top fof the platforni from bei-ugheatcih Y M is a"pi'pe,'pcrioratedat short intervals along its entire length,"and which is placed in a proper recess, (1, extending,f upn cach side, the whole length .of the kiln. `rlhrough this pipe, which issupplied from sui-tf'.

abletanks, 'water is thrown upon the sides ot' the flanges l of flie'pla-tfoi'in, to prevent them beingheated. `The track G, orthc hedwthereoi', is immersed iu a'.

water-tank, N, which extends the entire .length of the kiln,"1 1-o insure its protection from fire in case of acci` dent. y g

lSuitable sliding gatos-suspended by cords and weights from the pulleys O, close the ends of the kiln as' lowas the fines-D c, shown in n13, or lower, if necessary.v r

The track extending through the kiln and coolingf chamber shouldextendvbeyond each end a few feet.

The bricks tof bc burnedare loaded on the carriage P, whiclrstandsoutside ofthe kiln upon the track.

The fires being lighted through the door a', the heat and Haines pass upward around and through the bricks uponthe track, (which has been pushed into'the hiln,) in thcl direction indicated by the arrows shown in fig.

3, seeking an outiet through the opposite fines (l.

When the water-smoke has been driven oil" throughloaded ear isf-pushed into ,fthe kiln, which force'sf the closed, and the gradually necessary', through the openings k, under thegrates of the time R'Va,y secondy car isl pushed;` in, which dri-ves the car already inside the kiln. into contact with the, next furnace of the series, in which a `firehas been made, and so on, the operation isA repeated until the kiln is filled with carriages loaded with bricks. v l `V/'heil the bricks upon the car first-loadedland pusbedsintogthe kiln are suiciently burned, a freshly.

first vcar into/ the eenling-chamber, which is again se loperations are continued indefinitely, asmay'bedesired44 v l.

y' The fires in the series of furnaces nlayvbetempered to suit the condition of thebrieks as they pasltlilough the kiln', and the bricks, afr being burned, are cooled' jin the cooling-chamber, hereinbefore described.- t l A K,

A greater draught may begiven to the fires,I if" the furnaces. n %hat I claim as myinvention by I,et

,and desire-to secure ters Patent,

,y l l. In progressive burning-kilns, the gutters J, lled.

Vset forth'.

'of a Vseries of furnaces, A, coolingfchamber H, raiiw Witnesses:

SAMUEL VJ. SBRAY, 1 `if yA. F. DUNLOP. l l i (l,

withzsnd, in con bination with tlie downwrdlproject# ing angesjI, of the platform L of the truck P, andwith the perforatedwater-pipe M, when arranged and operating substantially as and for the purposes-herer1l 2." The jplaf-tfoxvmI @provided 'with upturhed fianges'l K, containing sand, ashes, or other non-conductors of heat, an'd'with the down-turned fianges'if, constructed` 'and arranged substantially as described and shown, and ,forthe purposes setfortb.' f 3. In briek-kilns'const-ructed as herein set forth,` tlm perforated water-pipe M, for the purposes designated. 4., Aprogresstvebnrning and eooling'kiln,ccmposed ay track G, water-tank N, gutters J', perforated pipes M, and Hueso D o, arid provided with suitable gates7 all arranged relatively to eaelnother, stautially as and for the purposes herein described.

'WIJILIAlizI'- GILBERT. l,

and operating sub. 

